冷却塔电机
冷却塔部件
Marley 产品中的冷却塔电机按照 NEMA 标准制造,并且 设计用于承受炎热、潮湿的冷却塔环境. The TEFC (totally-enclosed, fan-cooled) motor is protected from water and debris, supporting durability in cooling tower environments.
此外,为了延长使用寿命,电机内部采用风扇冷却,并涂有环氧树脂, 最大程度的保护 防热、防潮、防腐蚀。外壳采用高级铸铁。
TEFC 电机配备内置风扇,无需依赖冷却塔气流进行冷却。即使在风扇低速运转时,电机也能持续冷却,这有助于延长使用寿命并提高可靠性。TEFC 型电机在任何转速下都能提供有效的通风。
排水塞位于电机的每个 90 度角上以及每个端盖的表面,以适应任何安装配置。
For many cooling tower applications up to 100 horsepower, motors are available with sealed bearings. Some configurations utilize greaseable bearings designed for periodic maintenance per motor nameplate instructions.
当与单一解决方案包中的 VFD 结合使用时,与双速启动器相比,客户可以节省高达 30% 的能源,与单速启动器相比,可以节省高达 70% 的能源。*
*Based on CoolSpec® selection for a three-cell NC8405TAN with 40hp motor per cell running 24/7 for 5 years. Total water flow over the tower is 4500 GPM. Cost is $0.10 per kWh with an assumed annual interest rate of 3%. Cold water set point is 75°F, with an average wet-bulb temperature of 50.7°F, (average seasonal value for Cincinnati, OH).

